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106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
//
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// TextOverlay.cpp
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// interface/src/ui/overlays
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//
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// Copyright 2014 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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// include this before QGLWidget, which includes an earlier version of OpenGL
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#include "InterfaceConfig.h"
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#include <QGLWidget>
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#include <SharedUtil.h>
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#include "TextOverlay.h"
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#include "ui/TextRenderer.h"
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TextOverlay::TextOverlay() :
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_backgroundColor(DEFAULT_BACKGROUND_COLOR),
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_leftMargin(DEFAULT_MARGIN),
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_topMargin(DEFAULT_MARGIN),
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_fontSize(DEFAULT_FONTSIZE)
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{
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}
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TextOverlay::~TextOverlay() {
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}
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void TextOverlay::render() {
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if (!_visible) {
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return; // do nothing if we're not visible
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}
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const float MAX_COLOR = 255;
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glColor4f(_backgroundColor.red / MAX_COLOR, _backgroundColor.green / MAX_COLOR, _backgroundColor.blue / MAX_COLOR, _alpha);
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glBegin(GL_QUADS);
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glVertex2f(_bounds.left(), _bounds.top());
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glVertex2f(_bounds.right(), _bounds.top());
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glVertex2f(_bounds.right(), _bounds.bottom());
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glVertex2f(_bounds.left(), _bounds.bottom());
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glEnd();
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//TextRenderer(const char* family, int pointSize = -1, int weight = -1, bool italic = false,
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// EffectType effect = NO_EFFECT, int effectThickness = 1);
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TextRenderer* textRenderer = TextRenderer::getInstance(SANS_FONT_FAMILY, _fontSize, 50);
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const int leftAdjust = -1; // required to make text render relative to left edge of bounds
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const int topAdjust = -2; // required to make text render relative to top edge of bounds
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int x = _bounds.left() + _leftMargin + leftAdjust;
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int y = _bounds.top() + _topMargin + topAdjust;
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glColor3f(_color.red / MAX_COLOR, _color.green / MAX_COLOR, _color.blue / MAX_COLOR);
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QStringList lines = _text.split("\n");
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int lineOffset = 0;
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foreach(QString thisLine, lines) {
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if (lineOffset == 0) {
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lineOffset = textRenderer->calculateHeight(qPrintable(thisLine));
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}
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lineOffset += textRenderer->draw(x, y + lineOffset, qPrintable(thisLine));
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const int lineGap = 2;
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lineOffset += lineGap;
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}
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}
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void TextOverlay::setProperties(const QScriptValue& properties) {
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Overlay2D::setProperties(properties);
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QScriptValue font = properties.property("font");
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if (font.isObject()) {
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if (font.property("size").isValid()) {
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setFontSize(font.property("size").toInt32());
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}
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}
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QScriptValue text = properties.property("text");
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if (text.isValid()) {
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setText(text.toVariant().toString());
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}
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QScriptValue backgroundColor = properties.property("backgroundColor");
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if (backgroundColor.isValid()) {
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QScriptValue red = backgroundColor.property("red");
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QScriptValue green = backgroundColor.property("green");
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QScriptValue blue = backgroundColor.property("blue");
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if (red.isValid() && green.isValid() && blue.isValid()) {
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_backgroundColor.red = red.toVariant().toInt();
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_backgroundColor.green = green.toVariant().toInt();
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_backgroundColor.blue = blue.toVariant().toInt();
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}
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}
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if (properties.property("leftMargin").isValid()) {
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setLeftMargin(properties.property("leftMargin").toVariant().toInt());
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}
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if (properties.property("topMargin").isValid()) {
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setTopMargin(properties.property("topMargin").toVariant().toInt());
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}
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}
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